Syringe.



c. F. WELSH.

, SYRINGB.

AP2LIUATION FILED MAY 11, 1 909.

918,234, Patented Apr. 13, 1909.

' 'witnesses ,(9 Inventor v I my yc: warms psu-ns co., wAsHmarcN. n, c,

UNTE) STATES CHARLES F. WELSH, OF DETROIT, MICHIGAN.

Specification of Letters Patent.

SYRINGE.

Patented April 13, 1909.

Application filed May 1l, 1908. Serial No. 432,084.

To all whoml it may concern:

Be it known that I, CHAnLns F. WELSH, a citizen of the United States, residing at De troit, county of l/Vayne, State of Michigan, have invented a certain new and useful lmprovement in Syringes, and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this speciiication.

This invention relates to syringes.

It has for its object an improved syringe provided with a rotary nozzle adapted to discharge liquid from within the syringe in a circle, or in a large circular mass, extending entirely around the nozzle.

ln the drawings z-Figure l, is a longitudinal section of a syringe. Fig. 2, is a side elevation of the nozzle. Fig. 3, is a longitudinal section of a nozzle holder. Fig. e, is a longitudinal section of the holder, nozzle, and nozzle actuator. Fig. 5, is a perspec tive of the nozzle actuator.

l indicates the bulb, made of flexible and elastic material.

2 indicates the nozzle holder inserted in the pointed end of the bulb, and securely held thereto.

3 indicates the nozzle held in place in the nozzle holder.

4 indicates the nozzle actuator.

The nozzle holder is provided, on that end of it which lies within the bulb, with an enlarged chamber 5, in which is received a collar 6 of the bulb end of the nozzle. The nozzle engages loosely within the holder, closely enough therewith to prevent a leakage of water in any large quantity, but loosely enough to freely rotate in the holder as a bearing. In the end of the nozzle holder there projects rearwardly a tubular, cylindrical actuator Ll, provided on its external surface with a thread-like or spiral groove 6a, and with means to prevent its own rotation; as shown in Fig. 5 this is a straight longitudinal groove 7. Within the longitudinal groove 7 engages the end of a screw 8, which passes through a wall of the nozzle holder 2, and the end of this screw projecting into the longitudinal groove 7, prevents the actuator from turning on its iongitudinal axis, but allows it to be moved or driven along its longitudinal axis into the interior of the nozzle 3. Through the collar part 9 l of the nozzle projects a screw 10, which en gages in the spiral groove 6a, and causes the nozzle to rotate when the nozzle actuator is moved on its longitudinal axis. Communi cation through the actuator from the chamber external to the actuator and to the chamber inside of the actuator and to the chamber in the nozzle, is maintained by suitable openings 11 through the walls of the actuator tube.

ln the form shown in Fig. 1., the longitudinal groove is omitted and the actuator is held to the wall of the bulb 1 by a screw 12, and an external nut 13. A screw 12 pierces the wall of the bulb which. is here held between the washer le and the nut 13. The nut 13 is provided with an eyexthat holds a ring 15, used to suspend the syringe, if it be desired t0 s0 suspend it. The nozzle may be rovided with spiral delivery slots 16, rounc de livery apertures 17 at the end, or longitudinal delivery slots 19, as shown in Fig. 4. A guard 2O of ordinary construction engages around the nozzle holder.

ln operation the flexible bulb is compressed and the actuator driven into the chamber in the nozzle, and its motion -forces the nozzle to rotate, and at the same time the liquid expelled from the nozzle through the slots 16, or the slots 19, leaves the nozzle inlines radial thereto, Jlling a large part of the space surrounding the nozzle, and givin to the emerging water the form of a spira spray. The revolving nozzle produces a sheet or spray of liquid that is brought into Contact with the entire surface of parts under treatment, and on the reverse movement of the nozzle there is direct and strong suction action over all of the surfaces, and all foreign substances are removed and carried away.

TNhat l claim is 1. ln a syringe, the combination of a bulb, a rotative nozzle, and means for producing rotation thereof.

2. A bulb, a nozzle holder, a nozzle rotatively mounted in said holder, a spiral threaded actuator engaging said nozzle and adapted to provide rotary action thereof coincident with longitudinal motion along its own axis.

3. ln a syringe, the combination of a bulb, a nozzle holder, a nozzle rotatively mounted therein, a hollow actuator communicating with the interior thereof and provided with passages for liquid from the exterior through lll) said actuator into the interior'or' the nozzle, substantially as described,

4. In a syringe, in combination With a nozzle having an apertured delivery end, an aetuator adapted to telescope thereinto, and a Y bulb to which one end of said actuator is fixed, whereby the actuator may be projected and retracted, substantially as described.

5. In a syringe, a bulb, a nozzle actuator held from rotation by attachment thereto, and a rotative nozzle provided With slotted ln testimony whereof, I, sign this speei- A cation in the presence of two Witnesses.

CHARLES F. WELSH.

. Witnesses:

CHARLES F. BURTON, E. C. JENNINGS, 

